Sustec Pro Z40 uses advanced dampers made by KYB and offers fully adjustable ride height, 40-way dampening adjustment, and a twin tube design. Made and tested on every vehicle application to meet the maximum performance and direct fit.

SUSTEC PRO Z40 uses the same high quality PRO210 Springs found on the SUSTEC PRO FIVE Coilover System. With the full case length threading and independent ride height / spring preload adjustment, you can adjust the ride height without preloading the spring, thus maintaining great ride quality.

These are the same springs that were used in the Takata Dome Racing Honda NSX in the JGTC GT500 Class in Japan.